Patents by Inventor Karebu SUZUKI

Karebu SUZUKI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vibration gyro having bias correcting function, and method of using vibration gyro
    Patent number: 10330473
    Abstract: A vibration gyro having high bias stability, and a method of using the gyro for obtaining a precise angular velocity signal by correcting the bias. The gyro has: a drive signal generating part configured to generate a multiplexed drive signal; first and second demodulation circuits configured to generate first and second demodulation signals, respectively; first and second control circuits configured to generate first and second feedback amplitude signals, respectively; a feedback signal generating part configured to generate a first multiplexed feedback signal by multiplexing a first feedback signal obtained by modulating the first feedback amplitude signal at the first frequency, and at least one second feedback signal obtained by modulating the second feedback amplitude signal at the at least one second frequency; and a subtracter configured to output an angular velocity signal by subtracting the second feedback amplitude signal from the first feedback amplitude signal.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 25, 2019
    Assignee: MITSUBISHI PRECISION CO., LTD.
    Inventors: Karebu Suzuki, Kenji Kobayashi, Tomohiro Fukuda, Syuji Nakashita
  • VIBRATION GYRO HAVING BIAS CORRECTING FUNCTION, AND METHOD OF USING VIBRATION GYRO
    Publication number: 20180058854
    Abstract: A vibration gyro having high bias stability, and a method of using the gyro for obtaining a precise angular velocity signal by correcting the bias. The gyro has: a drive signal generating part configured to generate a multiplexed drive signal; first and second demodulation circuits configured to generate first and second demodulation signals, respectively; first and second control circuits configured to generate first and second feedback amplitude signals, respectively; a feedback signal generating part configured to generate a first multiplexed feedback signal by multiplexing a first feedback signal obtained by modulating the first feedback amplitude signal at the first frequency, and at least one second feedback signal obtained by modulating the second feedback amplitude signal at the at least one second frequency; and a subtracter configured to output an angular velocity signal by subtracting the second feedback amplitude signal from the first feedback amplitude signal.
    Type: Application
    Filed: August 1, 2017
    Publication date: March 1, 2018
    Inventors: Karebu SUZUKI, Kenji KOBAYASHI, Tomohiro FUKUDA, Syuki NAKASHITA